Having bought the DLC today (after overplaying the original game for hours and hours xD), I immediately discovered the Shrine of Uncertainty and it's random weapon.It is (obviously) very nice, too nice, as you can get a wide range of weapon up to Titanium/Obsidian... and thus go from the starting dagger to something very powerful (for example I got an Obsidian Rapier).

But on the contrary of all the other Shrines, I find the fact that you don't have to give or give up anything to get the random weapon overpowered.It is easy to detect which weapon you've just been dealt, and if you don't like it, you can just get your previous one. So it's pretty much a bonus with absolutely no real cost or set back.

I'd suggest having the shrine destroy your previous weapon to make sure you're sticking with the random one.You want to play with random stuff? Here you are, now deal with it